Cheapest return flights from Keflavik to Dublin in December from $268

AirHint found the following cheapest return flights from Keflavik (KEF) to Dublin (DUB) in December 2025 (see full year).

Return flights

27 Dec - 07 Jan easyJet
27 Dec - 31 Dec easyJet
27 Dec - 07 Jan Icelandair direct
18 Dec - 20 Dec easyJet
20 Dec - 30 Dec Transavia France
27 Dec - 31 Dec Icelandair direct
18 Dec - 20 Dec Icelandair direct
20 Dec - 30 Dec Icelandair direct
22 Dec - 29 Dec Icelandair direct

Also check the deals for one-way flights from Keflavik to Dublin in December.

Powered by

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Dublin

Cheap car rent in Dublin

Feel free to contact us with any feedback or request another flight research.